Synthesis of carbon nitride has been an important topic in materials science since 1993. Ion-assisted pulsed laser deposition is proven to be a good method to deposit carbon nitride thin films. Both amorphous and crystal -C3N4 layers can be deposited on many substrates. A standard experimental set-up comprises a pulsed KrF excimer laser (wavelength 248 nm, duration ∼30 ns) that is used to ablat...

Pulsed laser deposition of La0.5Sr0.5MnO3 (LSMO) thin films on quartz wafers at different deposition temperatures has been carried out. The microstructural, electrical and low-field magnetotransport properties of these films are evaluated as functions of the deposition temperature. The film crystallinity depends substantially on the deposition temperature. Significantly enhanced low-field magne...

The demands of future CMOS devices require a new gate dielectric material with higher dielectric constant than SiO2. Aluminum oxide is one of the high-k materials and an interesting candidate. Thin Al2O3 layers have been deposited by pulsed laser deposition (PLD) from a mono-crystalline sapphire target. This deposition technique was chosen because of its flexibility and availability. Aluminum o...

The laser damage resistance of optical coatings is a key point for a large number of applications. The aim of this work is to test and analyze the laser damage resistance of a thin film material commonly used for high power applications (SiO2) and deposited with different techniques: Electron Beam Deposition, Ion Assisted Deposition, Low Voltage Reactive Ion Plating and Dual Ion Beam Sputtering...

Structural and mechanical properties of diamond-like carbon films deposited by an anode layer source, Thin Solid Films 517 (2009) 6502. spectroscopy of diamond-like carbon films deposited by an anode layer source, Diamond Relat. Mater. 17 DLC films deposited at room-temperature by reactive magnetron sputtering and by an anode layer source – a comparative study, Relation between structural/topol...

The process modeling for the growth rate of pulsed laser deposition (PLD)-grown ZnO thin films was investigated using neural networks (NNets) based on the back-propagation (BP) algorithm and PCA-based NNets using photoluminescence (PL) data. D-optimal experimental design was performed and the growth rate was characterized by NNets. PCA-based NNets were then carried out in order to build the mod...

Nanostructured gold and silver thin films were grown by pulsed laser deposition. Performing the process in an ambient gas (Ar) leads to the nucleation and growth of nanoparticles in the ablation plasma and their self-organization on the substrate. The dependence of surface nanostructuring of the films on the deposition parameters is discussed considering in particular the number of laser pulses...

Grown by Pulsed Laser Deposition Jae-Min MYOUNG1, Wook-Hi YOON, Dong-Hi LEE, Ilgu YUN, Sang-Hyuck BAE and Sang-Yeol LEE Information and Electronic Materials Research Laboratory, Department of Materials Science and Engineering, Yonsei University, 134 Shinchon-Dong, Seodaemun-Gu, Seoul 120-749, Korea Department of Electrical and Electronic Engineering, Yonsei University, 134 Shinchon-Dong, Seodae...

We have studied the photoluminescence of highly transparent and c-axis oriented ZnO thin films grown on (0001) sapphire by Pulsed Laser Deposition at different temperatures ranging from 10K to 300K. We observed temperature dependent recombination from free excitons, bound excitons and LO phonon assisted free and bound excitonic transitions. The energies of free excitonic transitions are close t...